Use dental handpieces this way for greater durability!

Before the procedure, initiate the foot pedal to release any residual gases and fluids from the tubing, ensuring the ejection is functioning properly. Then, proceed to mount the dental handpiece and the bur.

a. For the locking pin type (spiral type): Secure the handpiece on the dental unit and attach the bur, tightening it gently with the handpiece key until it is firmly in place without overexertion.

b. For the button type (pressure cap type): Press down on the button at the top of the handpiece to attach or detach the bur, and release the button to clamp it securely. After attachment, manually verify the proper installation.

Engage the foot pedal to adjust the water flow and air pressure to the optimal levels, with a standard pressure range of 0.2-0.23Mpa for high-speed handpieces.

Caution: Avoid using the foot pedal before the bur is installed to prevent damage to the handpiece's clamping mechanism.

Post-use care involves handling the handpiece with utmost care and precision to avoid rough maneuvers and accidental drops. Operate with a gentle touch, using an up and down motion without lateral force, and hold the handpiece in a modified pen grip for stable, intermittent use.

Regularly switch out the handpiece and burs according to the specific dental position and cavity shape to reduce wear on the handpiece's bearings. Utilize sharp burs to save time and effort and to minimize damage to the handpiece and discomfort for the patient.

Routine checks for bur looseness are essential to prevent accidental ejection. Choose the appropriate handpiece for different clinical scenarios, such as mini handpieces for posterior tooth pulp chamber opening that do not obstruct the line of sight, or high-torque handpieces for tooth preparation that require more force.

For extensive work, alternate between two handpieces to prevent overload and save time on switching. Refrain from using the handpiece if there is severe radial or longitudinal movement of the core, or in the absence of water.

Frequent checks of air and water pressure are necessary during clinical operations to ensure the handpiece functions correctly.

After use, promptly clean the handpiece to prevent the solidification of debris. Use a water mist to clean the working head before removing the bur, followed by wiping with 75% alcohol or using a specialized automatic cleaning machine, depending on the clinic's specific conditions.

When removing the bur, loosen the key by a quarter turn to avoid damaging the three-leaf spring. Timely removal of the bur after each use aids in the recovery of the handpiece's mechanical components.

For maintenance, an air pressure oil can is ideal for lubricating the handpiece and cleaning the bearings and fan wheel. Remove the bur before use, wrap the head with paper, and insert the nozzle into the air intake to ensure sufficient pressure. Use the oil can vertically, spraying for 2-3 seconds.

For two-hole handpieces, aim at the larger hole; for four-hole handpieces, aim at the second-largest hole. If using the drop method, place four drops into the larger hole and then intermittently blow air into the oil hole with an air gun for 30 seconds.

Avoid using industrial lubricants to prevent patient poisoning. For long-term storage, ensure the handpiece is well-oiled and sealed.

For low-speed handpieces, never test the device without a bur installed. After attaching the bur and securing the lever, proceed with testing.

The oiling method for low-speed handpieces involves applying oil to the front half of the device, allowing for ventilation after oiling before attaching the straight or angled head. (Disinfection methods are not detailed here.) Proper use of any tool, including handpieces, is essential for maintaining performance and longevity.

Encourage the adoption of correct usage methods and the development of personalized techniques based on practical experience to enhance the usability and lifespan of the handpiece.